From TFA:

There is no doubt that shaking a child can cause injuries, including those that comprise the shaken baby syndrome triad. Newer research, however, has shown that shaking is not the only way to cause those injuries: They can also result from an accidental “short fall” (e.g., falling off a bed) as well as from other medical causes (e.g., pneumonia, improper medication)—all of which were true of Roberson’s daughter. In fact, a 2024 study found that the injuries historically used to diagnose shaking are actually more likely to result from accidents than from shaking.